Music-leaf turner.



1.5. RETZLER & J. L. SHELTN.

Muslc LEAF TURNER.

APPLICATION FILED OCT. 9. 1913.

1, 140,6 1 2. Patented May 25, 1915.

THE MORRIS PETERS C0., PHoToJJTHo., WASHINGTON. D. C.

VUNITED STATES PATENT OFFICE.

JOSEPH LT. RETZLER, F SWISSVALE, AND JAMES L. SHELTON, OF TURTLE CREEK, PENNSYLVANIA.

MUSIC-LEAF TURNER.

Specification of Letters Patent.

Patented May 25, 1915.

T0 @ZZ whom t may conce/fa:

Be it known that we, Josnrn J. RETZLER and .latins L. SrrEL'roN, citizens of the Unit-ed States of America, residing at (l) Swissvale and 2) Turtle Creek, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful improvements in Music-Leaf Tui-ners, of which the following is specification, reference being had therein to the accompanying drawing.

'lhis invention relates to music leaf turners and has for its object to provide means, in a manner as hereinafter set forth, for conveniently releasing a leaf turning device to permit of said device automatically operating to turn a leaf of music.

Further obiects of the invention are to provide a music leaf turning device which is simple in its construction and arrangement, strong, durable, eilicient and convenient in its use, readily set up with respect to a piano, organ or music stand and comparatively inexpensive to manufacture.

lilith the foregoing and other objects in view the invention consists of the novel construction, combination and arrangement of parts hereinafter more specifically described and illustrated in the accompanying drawing, wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within the scope of the claim hereunto appended.

In the drawing, wherein like reference characters denote corresponding parts throughout the several views z-Figure 1 is a front elevation, partly in section of a music leaf turner in accorda-nce with this invention, Fig. 2 is a plan broken away of the lower portion of the device. Fig. 3 is a vertical sectional view, broken away, of the lower portion of the device. Fig. 4 a modified form of operating mechanism for the releasing of the locking device of the turning element.

Referring to the drawing in detail 5 de notes a plate or board having secured to its outer face thereof a pair of short longitudinal bars 6&7, these latter are arranged in vertical alinement and spaced from each other and each of which is provided with a plurality of openings 8.

Revolubly mounted in the openings 8 are a plurality of vertically disposed turning shafts 9, 10, 11 and 12 provided with stop collars 13, 14 to arrest the vertical movement of the turning shafts with respect to the bars 6 7. The turning shafts are normally locked from movement by their actuating means, the locking element for said shafts will be presently referred to. The actuating element for each of the shafts con sists of a coiled spring, the springs for the shafts 9 and 11 being indicated at 15 and having one end fixed to their respective shaft and the other end fixed to the bar 7, while the springs for the shafts -12 are indicated at 16 and have one end lixed to the bar 6 and the other end to their respective shaft.

The lower end of each of the turning shafts is provided with a right angular ex tension, the extensions for the shafts 9, 10, 11 and 12 being indicated respectively by the reference characters 17, 18, 19 and 20. Each of the shafts 9 to 12 inclusive is provided with a pair of leaf shifting arms 21, 22 which are lixedly secured at their inner ends to their respective shaft,

The extensions 17 to 2O are arranged at the lower ends of their respective shafts and the ends of said extensions project beyond each other starting with the extension 17, and by such an arrangement the shafts are successively released, in a manner as herein-` after referred to, the shaft 9 being the first shaft released.

Arranged below the extensions 17 to 20 is a block 23 provided with a chamber 2l, an opening 25 at the top of said chamber and a passage 26 which communicates with the opening 25. Arranged in the opening 25 is an angle shaped stop member 27, the vertical arm of which overlaps the ends of the extensions 17 to 20 for the purpose of holding the turning shafts 9 to 12 against the action of their actuating springs. The longitudinal arm of the member 27 projects into the passage 2G and has connected there to a stem 28 provided with a handle 29. The bottom of the member 27 is formed with teeth 30 having meshing therewith a pinion 31, which is arranged in the chamber 211, upon a shaft 32. Arranged in the chamber 24 is a spring controlled pawl 33 which engages the teeth of the pinion 31 to prevent back rotation thereof. Arranged in the block 23 is a cylinder 3l having projecting therethrough a plunger rod 35 which is lll) controlled by a spring 36 arranged within the cylinder 34. The rod 35 projects inwardly from the cylinder 34 and carries a spring controlled dog 37, which when the plunger 35 is shifted inwardly against the action of the spring 36, engages the pinion 31, moving it upon its shaft 32, thereby shifting the member 27 outwardly, the movement of the pinion 3l being the distance of one tooth, so a corresponding movement will be imparted to the member 27, such movement will be sufficient to shift the member 27 to release the extension 17 of the shaft 9. When said extension i7 is released, the spring 15 will turn the shaft 9, carrying the arms 21-22 therewith and turn a leaf of music.

ln Fig. 4 is shown a modified form of operating means for operating the actuating mechanism for the member 27, said means consisting of a solenoid 7a having a core 38, which, when the solenoid is energized will draw the spring controlled dog 39 thereto, the latter will then cause an actuation of the pinion 40, thereby shifting the member 4l to release an extension. The reference character 42 denotes a pawl to prevent back rota- Copies of this patent may be obtained for ve cents each,

tion of the pinion 40. Circuit wires 43, 44 lead to the solenoid 37L from a suitable source of electric energy and said wires have interposed therein a foot operated switch 45.

What we claim is z- A music leaf turner comprising a plurality of spring controlled turning shafts, music leaf shifting arms carried by said shafts angular extensions carried by the lower' ends of the shafts and each arranged in a different horizontal and vertical plane relative to the other, a slidably mounted stop member engaging the lower angle ends of the shafts, the inner face of the stop member having formed therein a series of recesses in different horizontal and vertical planes adapted to receive the angle ends of the shafts, and means for moving the stop member to successively release the shafts.

lln testimony whereof we affix our signatures in the presence of two witnesses.

JOSEPH J. RETZLER. JAMES L. SHELTON.

Witnesses:

NICHOLAS, L. BoGAN, MAX H. SRoLovITz.

by addressing the Commissioner of Patents.

Washington, D. C. 

